Score value of my node is not rising

I’m running Bitcoin Core 0.20.1 in Debian Buster.
I run the daemon behind Tor network.

My current settings are:

/etc/tor/torrc

SOCKSPort 9005
ControlPort 9501
HiddenServiceDir/var/lib/tor/bitcoin-service
HidenServicePort 8333
127.0.0.1:8333 HiddenServiceVersion 3

/usr/share/tor/tor-service-defaults-torrc (other than default that was already there):

CookieAuthentication 1
CookieAuthFileGroupReadable 1
CookieAuthFile /run/tor/control.authcookie

~/.bitcoin.conf (just networking related settings here)

proxy=127.0.0.1:9005
bind=127.0.01
listen=1
externalip=my.onion.adress.onion <– dummy, of course
onlynet=onion
port=8333
torcontrol=127.0.0.1:9501
onion=127.0.0.1:9005

With these settings, why isn’t ‘score’ value from ‘getnetworkinfo’ command output not increasing with my node uptime?